Search found 953 matches

by EVTodd
Jul 02 2015 12:37pm
Forum: E-Bike Technical
Topic: Is my wheel going to explode?!?!
Replies: 32
Views: 2609

Re: Is my wheel going to explode?!?!

Thanks for all the replies. I think I'll just keep it as is for a bit and if I start having problems down the road I'll rebuild the wheel. This bike isn't going to get a ton of miles anyway. Interesting advice on the rim. I think the DM18 is probably fine for this build. It's just a little geared ba...
by EVTodd
Jul 02 2015 11:08am
Forum: E-Bike Technical
Topic: Is my wheel going to explode?!?!
Replies: 32
Views: 2609

Re: Is my wheel going to explode?!?!

Your spokes when tightened properly are firmer than regular spokes and less springy/flexy, so they transfer more stress to from the rim to the hub, and increase the peak forces the rim has to take dealing with obstacles. So it will dent or bend easier and the eyelets are more likely to crack. Gotch...
by EVTodd
Jul 02 2015 8:11am
Forum: E-Bike Technical
Topic: Is my wheel going to explode?!?!
Replies: 32
Views: 2609

Is my wheel going to explode?!?!

Ok, the title of this message might be a little over the top, but... I built my first ebike wheel recently from a little geared Bafang and a quality double wall rim that has spoke eyelets (Alex DM18). Since I'm I big guy (200+ lbs) I thought it would be smart to use 12 gauge spokes. I did a ton of r...
by EVTodd
Jun 20 2015 9:38pm
Forum: E-Bike Technical
Topic: What are you using for hall wires?
Replies: 14
Views: 1181

Re: What are you using for hall wires?

The futaba servo connectors worked great. Thanks for the tip!
by EVTodd
Jun 10 2015 3:56pm
Forum: E-Bike Technical
Topic: What are you using for hall wires?
Replies: 14
Views: 1181

Re: What are you using for hall wires?

Ykick wrote:I use 2qty Futaba servo connectors - 2 contacts power, 3 contacts signal. Fits through axle hardware.
Great idea! Solves the problem of finding a connector too. Thanks!
by EVTodd
Jun 10 2015 2:10pm
Forum: E-Bike Technical
Topic: What are you using for hall wires?
Replies: 14
Views: 1181

Re: What are you using for hall wires?

I got a roll of 24ga PTFE insulated wire, and since I have so much, I would just use that, even if it didn't need the high-temp teflon insulation on the outside of the motor (only the inside is hot). First I got a roll of 30ga, but it just seems so incredibly tiny. If you want to try 30ga, you can ...
by EVTodd
Jun 08 2015 6:00pm
Forum: E-Bike Technical
Topic: What are you using for hall wires?
Replies: 14
Views: 1181

Re: What are you using for hall wires?

Is high temp wire really needed for the external hall wires?
by EVTodd
Jun 08 2015 1:53pm
Forum: E-Bike Technical
Topic: What are you using for hall wires?
Replies: 14
Views: 1181

Re: What are you using for hall wires?

grindz145 wrote:I would shy away from using CAT 5e, only because it's not stranded, and the vibration could cause you some greif down the road.
I did not know that. I'll scratch cat5 off my list then.
by EVTodd
Jun 08 2015 11:38am
Forum: E-Bike Technical
Topic: What are you using for hall wires?
Replies: 14
Views: 1181

What are you using for hall wires?

Very sorry since I'm sure this has been asked a million times but I can't find it in search. I'm building a bike with a low power geared bafang hub motor. I'm currently trying to make all the wiring nice and neat and was wondering what type of wire everyone uses for the hall signals. I'm talking abo...
by EVTodd
Apr 19 2015 9:28pm
Forum: E-Bike Non-hub Motor Drives
Topic: Looking to build a portable friction drive for bikeshares
Replies: 5
Views: 1102

Re: Looking to build a portable friction drive for bikeshare

shareroller wrote:we now have a product that performs better than any friction drive system before
:roll: Please...
by EVTodd
Apr 12 2015 2:58pm
Forum: E-Bike Non-hub Motor Drives
Topic: Friction drive Tidalforce project (Ghetto electric v4.0)
Replies: 30
Views: 17845

Re: Friction drive Tidalforce project (Ghetto electric v4.0)

Well this is quit a old post so maybe you had the chance to improve the drive and reduce the noise. I tested a lot and finally also used RC stuff for my drives but there are many possibilities I´m sure you did not test out. Nowadays RC-Controller can have more than 24 kHz for switching the phases. ...
by EVTodd
Apr 02 2015 8:39am
Forum: Items for Sale - New
Topic: Rubbee X - (re)Introduction
Replies: 53
Views: 10069

Re: Rubbee - A new choice

Rubbee wrote:Hi Todd,

Thanks for Your feedback.
And yes, we do use genuine leather for the very pleasant to use carrying handle :)

Cheers !
Cool, would it cost less if I ordered it without the real leather?
by EVTodd
Apr 02 2015 8:39am
Forum: E-Bike Non-hub Motor Drives
Topic: Friction drive is not dead! add-e a new way of thinking?
Replies: 8
Views: 1523

Re: Friction drive is not dead! add-e a new way of thinking

Here we go again. :roll:

Yup, same as the style Kepler did. Nothing new and you'll run into the same problems as everyone else trying to sell a friction drive.
by EVTodd
Mar 27 2015 9:54pm
Forum: Items for Sale - New
Topic: Rubbee X - (re)Introduction
Replies: 53
Views: 10069

Re: Rubbee - A new choice

Over $800 for a friction drive? They're almost giving them away!!!

Edit... Wait wait. I'm in the USA so $995! Just found a link to one of the dealers here. Sorry for the mistake. And it does have a genuine leather handle...
by EVTodd
Mar 20 2015 9:41pm
Forum: E-Bike Non-hub Motor Drives
Topic: Spinningmagnets' RC Friction-Drive Build-log
Replies: 148
Views: 70393

Re: Spinningmagnets' RC Friction-Drive Build-log

Friction drive doesn't work!!!

by EVTodd
Mar 19 2015 6:56am
Forum: E-Bike Non-hub Motor Drives
Topic: Why are 63mm outrunners preferred over 50mm outrunners.
Replies: 11
Views: 2298

Re: Why are 63mm outrunners preferred over 50mm outrunners.

For a direct can friction, I am considering this 59 with a 6S battery and I would like your opinion. http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18180 I'm using a Towerpro 5330 which, sadly, is no longer made. As for the motor you're looking at. I think most people using the ...
by EVTodd
Mar 19 2015 6:47am
Forum: E-Bike Non-hub Motor Drives
Topic: Spinningmagnets' RC Friction-Drive Build-log
Replies: 148
Views: 70393

Re: Spinningmagnets' RC Friction-Drive Build-log

I think it would be very hard to convince even the general public about friction drive. Even if they're not in the know about ebikes they tend to think it's too simple. Maybe. Maybe not. Try searching "Solex Moped" on google images to see the many and varied uses of friction drive bikes. Maybe beca...
by EVTodd
Mar 17 2015 10:10pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why are 63mm outrunners preferred over 50mm outrunners.
Replies: 11
Views: 2298

Re: Why are 63mm outrunners preferred over 50mm outrunners.

Yes, EVTodd has used a 50mm RC motor quite a bit with success @ 36V, but he also used a roller that was separate from the motor, so it was only one-inch in diameter. The type of drive that AdrianSM and Kepler designed use the motor-shell as the roller (50mm = approx 2-inches). Those drives are the ...
by EVTodd
Mar 17 2015 7:18pm
Forum: E-Bike Non-hub Motor Drives
Topic: Return of the 3D Printed Friction Drive
Replies: 11
Views: 2807

Re: Return of the 3D Printed Friction Drive

I really think the whole idea of a 3d printed friction drive is very cool but I wonder how well the plastic will hold up over time with the high heat of an outrunner motor. You wouldn't want a high power outrunner flying off a mount. I've also always thought my motor has held up for a long time beca...
by EVTodd
Mar 17 2015 7:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1345
Views: 269476

Re: Commuter Booster - <1kg Friction Drive

In fact, here's a friendly offer... I'll put my bike up against any other 36v ebike that's out there. I have a nice hill in my neighborhood were we can compare the two and post the results here. The only drive that would beat it that I can think of would be an rc powered mid drive. Nothing else has...
by EVTodd
Mar 17 2015 6:18pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1345
Views: 269476

Re: Commuter Booster - <1kg Friction Drive

If I wanted to use a lower gear ratio by using a small roller instead of the motor, I'd need to mount the motor outboard, right? I'll read through some of the other posts about that type of setup. Yup, and that's the key to getting good hill climbing ability with a friction drive. I use a 1.25" rol...
by EVTodd
Mar 17 2015 9:43am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1345
Views: 269476

Re: Commuter Booster - <1kg Friction Drive

Remember, 80-150W will be lost for deforming the tyre. As for hill climbing. I tried a 36v Bafang mid drive last year for a bit. My 36v friction drive will hands down embarrass a 36v Bafang any day. Up hill, on flats, whatever. oh come on, if power is the same you can't make such statement...a fric...
by EVTodd
Mar 17 2015 12:24am
Forum: E-Bike Non-hub Motor Drives
Topic: Friction drive outrunner setup. New DJ bike.
Replies: 360
Views: 76187

Re: Friction drive outrunner setup. New DJ bike.

Quick update. Just started riding this year. Everything still going strong. Still on the original TowerPro motor with original bearings, will it make it another season? :lol: I put a new back tire on this year just because the last one was getting old. It did, however, have plenty of tread left and ...
by EVTodd
Mar 17 2015 12:07am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1345
Views: 269476

Re: Commuter Booster - <1kg Friction Drive

Remember, 80-150W will be lost for deforming the tyre. Where did that number come from? That would depend on what kind of setup you have and tons of other factors. So by that theory if you have a 150w friction drive it will add zero assist. I don't think so. With a pivoting or sliding mount, once y...
by EVTodd
Feb 11 2015 11:51am
Forum: General Discussion
Topic: Paypal Hacked - Sophisticated Phishing Email Scam
Replies: 20
Views: 1375

Re: Paypal Hacked - Sophisticated Phishing Email Scam

What everyone else said. This is nothing new. I have been getting emails like that for years. Paypal wasn't hacked and It's not a feat of sophisticated hacking to copy an email (logos and all) and send it with any address complete with links to a fake site in it. NEVER EVER EVER click a link in an e...